Cause of yellowing

The yellowing of crab claw leaves is nothing more than that the environment is too different from the ideal environment, such as insufficient nutrients, too low humidity, cold current invasion, soil hardening, diseases and pests, and too dry basin soil. You can eliminate them one by one according to these reasons

There are two important pathogenic factors that deserve our attention. After the crab claw orchid, it will experience a period of dormancy, and the plant stops growing. At this time, excessive watering will lead to wet basin soil and yellow leaves

The light is strong in spring and summer, and the leaves will turn yellow if they are not shaded during outdoor maintenance

Yellowing treatment method

Rational fertilization

Crab claw orchid has little demand for fertilizer, so it is necessary to supplement fertilizer in time to promote the normal differentiation of flower buds. In case of lack of fertilizer, go directly to buy potassium dihydrogen phosphate and water it directly. Remember to keep the concentration low

Control water quantity

Watering should be controlled. Don't water too often. If the surface of the basin soil is dry, water it. Water according to the basin soil in winter, only dry but not wet

Moderate humidity

Indoor maintenance of crab claw orchid should not make the plant too close to the radiator or the air outlet of the air conditioner, otherwise the water on the leaf surface evaporates rapidly, the leaves dehydrate, and the whole plant gradually wilts and turns yellow

Pest control

The main pests of crab claw orchid are red spider and scale beetle. Once found, remove the leaves in time and spray them with drugs

Dormancy

Crab claw orchid has two growth periods and two semi dormancy periods in a year. It is watered according to the growth law and placed in different positions in different periods. During dormancy, pay attention to water control and fertilizer stop